Coal-cutting machine



f Al.- RUSSELL. COAL CUTTING MACHINE.

May 2, 1922 EUS-SHEET L. v

Patented H. c. f

'A. RUSSELL.

COALCUTTING MACHINE.A APPLICATION flu-:n.APn. i6, 1920.

- Patented May 2,1922.

5 SHEETS-snaar 2.

A. RUSSELL.

COAL CUTTING MACHINE. APPLICATION FILED APR.16. I9-2o.

1,414,586. Patented May 2,1922.

A. RUSSELL, COAL C'U`IA`TING MACHINE. APPLICATION FIKLED APEL I6, 1920.

Patented May 2, 1922.

5 SHEETS-SHEET 4.

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A. RUSSELL.

COAL CUTTING MACHINE. APPLICATION -HLED APR. 16.1920.

Patented May 2, 1922.

5 SHEETS-SHEET 5,.

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ARTHUR RUSSELL, or HUCKNALL, ENGLAND.

GOAL-CUTTING MACHINE.

1,414,586, specification of Lettersratnt. pagante@ May 2, 192g Application mea Aprn 16,1920. serial No. 374,357.

To all whom it may concern:

Be it known that l, ARTHUR RUSSELL, a subject of theV King of Great Britain, residing at Hucknall, in the county of Not-y tinghain, England, have invented a new and useful Coal-Cutting Machine, of which the following is a specification.

This invention relates to improvements in and applicable to coal cutting machines and has reference to the chain and disc type of machine.

1 The present invention has for its object the provision ofimpro-ved means forcarrying the cutting tools,lmeans for preventing the slack or dirt from being carried back into the machine after the ytools havevleft the cutting face, and improvements in the means for and in the method of cutting coal.

A further object ofthe present invention isl thecombination of the improved tool carrier with zapparatus for removing` the slack or dirt from the vicinity of the machine, wherein the improved carrier may be adapted to actuate said apparatus without resource to an independent source of power.

According to this invention the tools are Y carried by carriers pivotally mounted upon the tool boxes and such carriers are adapted to be rotated after leaving the cutting face for the purpose of preventing the slack and dirt being carried back into the machine. Scrapers are also provided, preferably constitutingY the front face Vof each carrier and suchscrapers further assist in carrying away the slack or dirt from the cutting face.

Y The improved cutters are' also preferably used in 'conjunction with Vthe apparatusfor removing the slack or d irt as described -in the specification of British patent applica- Vtion No. 28216 of 1919. y

For the purpose of more fully describing this invention reference will now be made to the accompanying drawings wherein:

` Fig. 1 is a part sectional view of one forni of the improved cutter,

. Fig. 2 is a plan part sectional onV A-B Fig.1, V l

Fig. 3 is an end elevation of Fig. 1 part Sectional through C-D,

Fig. 4 is a diagrammatic view showing different positions of the tools,

Fig.' 5 is an `elevation part sectional through the centre line of one tool showing Fig. 7 shows the'application of the im-v proved cutter to apparatus for clearing away thefslackl ory dirt from the immediate vicinity 'of the machine,

Fig. 8 showsV the application of this invention to av disc type vof machine and the combination therewith of apparatus for clearing away the slack or dirt from the immediate vicinity of the machine, and F Fig8. 9 is a seetionalview through` G-H n the drawings herewith Figs. 1, 2,3, 5, 6 and 7 show the application of this invention to a chain machine wherein tool boxes 1 connected by links 2 carry pivoted carriers 3. Conveniently this invention may be applied to any form of chain or disc machine and in the modification shown in Figs. 8 and 9 wherein is shown the adaption of this invention tol a disc machine, the tool boxes 1 and links 2 are dispensed with, but the cai'- riers 3 are as illustrated and described with .reference to Figs. 1 to 7 excepting that the anges b may be curved as and for the purposes hereinafter described. In the arrangeboth extremities of the boxes 1 and the boxes and links held iii position by bolts or the like passing through holes 5 centrally situated within said bosses. Shouldersl 6 are alsoV preferably provided on the boxes and links and are adapted to bear against a. corresponding shoulder provided valong the in'- ner face of the gib 7 (Fig. 3),

The carrier 3 is preferably made in one piece and comprises a central portion a, side members orpflanges provided with bosses as at c adapted to bear on the upper recessed portion (l of the box 1, a shoulder being prov.vided as at e between said portion cl and the the upper portion inthe cutting position as shown in Figs. 1,.

2 and 3 the carrier 3 is held from rotation dof the box' 1f, and when Y I by reason of the flanges bearing on the upper face of the gib 7. flange may be provided as at f for limiting the rotation of the carrier 8, but if it is required to reverse. the chain, such flange may be dispensed with, the upper portion d of the box 1 vthen being symmetrical about the vertical centre line of the bolt 8. n

After leaving the cutting face and when the links and boxes are engaged. by the sprocket wheel, each' carrier 3 is adapted to be rotated through 90 degrees into the backward o-r non-cutting position., Figs. 5 and 6, `the lower portion of the underneath face of the central portion a; formerly tangential to the upper curved face of the upper portion CZ of the box 1 then bearing on the rear vertical face of said box andkthus holdinguthe carrier' from further rot-ation.

The tools 9 may be of any convenient design and shape and there may be one or more than one tool carried by each box. Different arrangements of the tools are represented n Fig. 4 wherein are shown straight tools g vertical when in the cutting position as shown in Fig. 1 and outwardly projecting tools h. If such latter tools are used the carrier 3 is preferably widened as shown, and in a further modification a bent tool 7c. is employed, the pick of such tool being central. Any other convenient form of tool may, however, be employed and any combination of the different tools may be used on each box.

Such tools 9 may extend through the flanges b of the carrier 3 tobear on the circumference of the bolt 8 or inthe modificationshown in Fig. f1 the tools 9 are slotted as at p or a hole is provided in said tools for accommodating the bolt 8.

For the purpose of maintaining such tools when extending only to the bolt 8, in their placed positions, a bolt 10 may be adapted to` pass through said tools and-the vcarrier 3, such bolt being held in position in any con"- venient manner. In a modificationV a set screw is provided as at 11 this means of positioning the tools allowing of same being moved further in or out of the carrier for the purpose of alignment.

' Conveniently situated on the front of some or all of the boxes is a'scraper 12,'v preferably rectangular and extending above and beyond the carrier 3 to which said scraper is attached by set screws or the like 13. Con-y veniently slots 14 are provided on the faces of the Scrapers for" the purpose of laterally adjusting same. and the function of saidV 'Scrapers is to carry the slack and dirt de#v posited'during the cutting of the coal to the end of the machine. Y

For theV purpose of traversing the chain,

" sprocket wheels 14EL are adapted to engage .f sameat both ends of the machine and when- 65.

engaged bysaid wheels the boxes l and the links 2 do not bear on the gib 7. As' shown in Fig. 7 the gib does not extend to the end of the machine and thus the carriers 3 carried by the boxes 1 engaging withV the sprocket wheel `are free to rotate about the the opposite direction with their picks pointing in the direction of traverse provided there is no flange as at f on the box land provided an adjustable gib member is pro-V vided as at 7a Fig. 7. Y Y

If the chain is traversed in a direction opposite to that depicted in Fig. 7 it is essential that the fianges of the carriers 3 ,should be riding on the edge ofthe member come into contact with the coal. Said member 7a (indicated dotted) is thus adapted to be moved outwardly to allow of the flanges ZJ riding along the outer edge thereof', and

immediately before the picks of the tools upon once more reversing the direction" of ried forward by each scraper 12 is thus left by each box as the carrier 8 is rotated'and anyconvenient means may be employed fork removing such slack from the vicinity of the machine. In the arrangement shown in Fig. 7 scraping members 16 carried by chains 17. are adapted to travel forward as each. box cornes intol position and such membersv thus carry forward the slack vdeposited by each lscraper 12 thus allowing ofsaidslack being more readily handled and reducing risk of dangerrto the operator by proaching cessitated.

In the arrangementshown a sprung rod 18 is adapted to be reciprocated by each box4 in succession to rotate a claw'ar'm 19`en'gaging a toothed wheel 20,'such .wheel traverse the chains 17.

I y his too nearly apf the machine as is at present ne-V n beingy coaxial with the sprocket wheels, adapted to The boxes may be adapted to rotate a slot-` ted member 21 pivoted at 22 for the purpose of reciprocating the Vrod 18. said rod carrying a pin 23l fitting into the slot 24. f-For increasing the throwof the arm 19, pins 22 and 25 carried by the member 21 adapted to slide within grooved carried by suitably situated members'said grooves being such' that when the may be slots 26k Pies?? and 25 are atthe end of their travel the respective boX- ceases to bear on themember 21; the lateral-motionof such latter member being possibleV by reason of the slot 24 provided therein.

The various members are carried to their normal positions under the action of the sprung rod 18, when they are adapted to be actuated by the neXt boxl in succession to` i traverse the scraping members 16.

After, or immediately before, each boX leaves the sprocket wheel 14a and returns along the gib to the cutting face, the anges of the carriers 3 are` adapted' to bear` against a projecting face m, preferably inclined, to rotate such carriers to their normal positions, lthe flanges b then riding on the edge of the gib removed from the cutting face 8a. machine the gib may enclose the sprocket wheel so that the flanges I) are bearingv on such gib immediately beforel commencing cutting, and cease to bear on such gib immediately after leaving the cutting-face as shown in Fig. 7. A

In the applica-tion of this invention to a disc machine as shown in Figs. 8 and 9 the disc 27 is provided at intervals with projections 28. YThe carriers 3 carrying the tools 9 are of the same construction as herein before described and are pivotally carried by the bolts 8 passing Vthrough the projections 28. The flanges b of the carriers 3 bear the outer'edge bracket plate 29 enclosing the disc 27, such flanges being curved so that they sit flush with theouter edge of said bracket plate or plates.

The disc 27 is rotated by a toothed pinion 30 engaging teeth V31 provided around the upper face of said disc and 'said pinionis mounted upon a shaft 32 carried by brackets 33 and driven from any convenient source of power.

The carriers 3 after leavingthe cutting face 34 are adapted to bear against a conveniently situated Vstop or the like 35 and upon bearing against such stop the carriers are rotated through 90 degrees, thus depositing the slack or dirt carried from the cutting face by the scrapers 12 and preventing said slack or dirt from being cairied back into the machine.l

For allowing of the rotation ofthe carriers 3 the bracket plates 29 are cut away as at 36. Conveniently a cut away portion 36 is provided at both sides of the pinion 30, said portion 36 on the side of the pinion nearer the cutting face being enclosed by Ya removable bracket plate 37 along the edge of which bear the flanges Z) of the carriers 3.

By reason of providing two cut away portions 36 anda rremovable bracket plate 37 reversing of 'the disc isV facilitated, the bracket plate 37 being removed from its former position to disclose the open cut At the further extremity of the away portion 36. The carriers 3 'will then be rotated after leaving the cutting face, but before leaving such face will bear on the edge of the plate 37 in its new position. Conveniently holes 38 may be provided in the plates 29 and 37 and such latter plates affixed to the former by nuts and bolts or the like as at 39.

For. ,the purpose of removing the slack or dirt deposited by the Scrapers 12 from the vicinity of the machine, independent scrap- Vers 40 may be used in vcombination with this invention.- As shown in Figs. 8 and9 the scrapers'40 carried by chains 41 are driven by a chain 42 actuated by a sprocket wheel 43 coaxial withthe shaft 32, and the line of traverse of said Scrapers is at right angles tothe cutting face 34.

The disc machine as above described may be of any convenient designand actuated in any convenient manner and may be 'cut away as at 44 for the purpose of lightening same.

By reason of applying this invention as herein described the slack or dirt is prevented from being carried back into the machine after the tool boxesl have left the cutting face and if the rotatable carriers are used in conjunction with the scraping members 16 risk of .danger to the operator is considerably reduced.

1 claim 1. In coal cutting machines rotatable tool carriers adapted to bear against stops after leaving the cutting face, said stops rotating the carriers, said carriers depositing the slack or dirt carried from the cutting face upon rotating, stops adapted to bear on the carriers to rotate same into the cutting position after depositing the slack or dirt, and means for holding the tools carried by the carriers up to the coal when traversing the cutting face.

2. In coal cutting machines thek tools po sitioned by carriers rotatably mounted upon pivots, a bracket plate, flanges on the carriers riding along the edge of the bracket plate, said flanges holding the tools up to the coal, the carriers adapted to bear against stops to allow of the carriersvrotating when .bearing thereon, the slack or dirt carried stops Vafter' leavingl the cutting face, vthe l "bracket plate being cut away opposite said from the cutting face by Scrapers to the front of said carriers being deposited upon rotation thereof, and stops to rotate the carriers into the-cutting positionafter depositing the slack or dirt.

' 3. A. coal cutting machine provided with tools adjustably positioned within carriers, .Y

set screws for holding said tools inposition,

toolvboXes, the carriers rotatably mounted upon pivots carried by the tool boxes, a bracket plate, flanges-on the carriers riding on the edge of the bracket plate, bosses on'V the carriers sitting flush within recesses on the boXes, stops tobear on said carriers to lrotate same after leaving the cutting face, the bracket'plate being cut away' to allow of said rotation, means for limiting' same,

scrapers to the front ofthe carriers and vstops for again rotating the carrieis into the cutting position before reaching the cutting face.

- l. in coal cutting machines the tool carriers rotatably mounted upon pivots carried by the boxes, recesses'oii said boxes to accommodate bosses von the carriers, backivardly extending flanges on the carriers riding on the edge of the bracket plate,`said bracket'plate cut away to allow oi rotation of said carriers, stops to rotate same after machine provided with rotatable carriers adapted to remove the slack or dirt from the cutting face, of scraping members `for iemoving the slack deposited by the carriers from the vicinity of the machine, chains Vfor supporting said scrapingmembers, means for rotating said carriers vand said carriers adapted to cause said chains to move after they have been rotated substantially as and in the manner specified. p

6. The combination with :a coal cutting machine provided with rotatable tool carrieis adapted to be rotated after leaving the cutting face to deposit the slack or dirtcarried therefrom,- of scraping members arranged at right' angles to said -tool carriers and adapted to carry away the deposited slack or dii-t from thevicinity of the niachine and said tool carriers adapted to actuate said scraping' membersvsubstantially as and for the purpose specified. Y v

In witness whereof I' have lhereunto set my hand. i l s Y i ARTHUR RUSSELL. 

